Merge #7498

7498: Add compatibility methods for `rubygems-bundler` gem r=deivid-rodriguez a=deivid-rodriguez

### What was the end-user problem that led to this PR?

The problem was that `bundler install` on a `ruby` installation using `rvm` is broken by default.

### What was your diagnosis of the problem?

My diagnosis was that during 2.1.0 development phase I removed some stuff I thought it was internal and nobody would be using.

### What is your fix for the problem, implemented in this PR?

My fix is to restore a minimal compatibility layer so that this stuff works again.

### Why did you choose this fix out of the possible options?

I chose this fix because I think this is the minimum set of additions that gets stuff working again.

Fixes #7488.

Co-authored-by: David Rodríguez <deivid.rodriguez@riseup.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/bundler/rubygems_integration.rb b/lib/bundler/rubygems_integration.rb
index 3ca1831dee..17f2d7d9fa 100644
--- a/lib/bundler/rubygems_integration.rb
+++ b/lib/bundler/rubygems_integration.rb
@@ -496,6 +496,14 @@ module Bundler
       end
     end
 
+    def plain_specs
+      Gem::Specification._all
+    end
+
+    def plain_specs=(specs)
+      Gem::Specification.all = specs
+    end
+
     def fetch_specs(remote, name)
       path = remote.uri.to_s + "#{name}.#{Gem.marshal_version}.gz"
       fetcher = gem_remote_fetcher